Improvement in file-cutting machines



2 Sheelsv--Sheet S. & S. M. HA M BLIN. File'utting Machine.

Patented Feb. I6, 1875.

THE GRAPHIC C0.PHOT0.LITH,39 8:41 PARK PLACEMY.

2 Sheets-Sheet 2.

s. eps. M. HAMBLIN. File-Cutting Machine.

Patented feb. 16,1a75f THE GRPHIC C0.PHOTD LITH.39 8:41 PARK PLAGEJLY.

VNITEE STATES PATENT OEEIoE SILVAN US HAMBLIN AND STEPHEN M. HAMBLIN, OFPAWTUOKET, RHODE ISLAND, ASSIGNORS OF TWO-THIBDS THEIR RIGHT TO LEWIS S.J UDD AND ALEXANDER WIN SOE, OF FAIRHAVEN, MASSACHUSETTS.

IMPROVEMENT IN FlLE-CUTTING MACHINES.

Specification forming part'of Letters Patent No. 159,756, dated February16, 1875; application filed August 14, 1874.

To all whom it may concer-n:

Beit known that we, SILvANUs HAMBLIN and STEPHEN M. HANELIN, ofPawtucket, Rhode Island, have invented certain new and usefulImprovement-s in Machines for Cutting Files, termed File-Guttersg7 andWe do hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawingsmaking a part of this specification, in Which- Figure lis a perspectiveView of the Inachine; Fig. 2, a birds eye view, with the toothed Wheel land caps c c and E E removed; Fig. 3, the head-block, showing the formof plunger F and chisel; and Fig. 4, the shoe H, showing the holder l,operated by the screw l.

A is a bed or block, made of cast-iron, having a Way in the center forthe shoe H to slide in, which shoe is operated by a screw attached togear-Wheel 3, which is operated by gears l and 2, which receive theirmotion from balance-wheel 4 when operated by hand. Gr is a binder, (Withthe spring 5,) attached to catches K K, for binding the blank Whilebeing cut.

Spring Z, attached to the hammer B, forces the chisel upon the blankbefore the hammer B strikes. The cross-head, Fig. 3, is secured byset-screws V V to standards D D. O O are standards for holding shaft forhammer. E E are standards for holding shaft for balance-Wheel 4 and gearl. The chisel in plunger Fin Fig. 4 is secured in cross-head byset-screw X, the cross-head being adjustable in slots Y Y by theset-screws V V, thereby obtaining any angle desired.

What We claim as our improvement and invention, and desire to secure byLetters Patent, is-

The combination, substantially as herein shown and described, of thefeed-screw I, and gear-Wheels l, 2, a-nd 3, hammer B, provided withspring Z, cross-head F, for carrying or supporting the chisel, binder G,and shoe H, as and for the purpose set forth.

SILVANUS HAMBLIN. STEPHEN M. HAMBLIN. Witnesses:

J oHN BLACKBURN, WILLIAM DRrscoLL.

